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| author | Bart Van Assche <bvanassche@acm.org> | 2019-10-25 18:50:09 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-10-25 22:12:18 +0200 |
| commit | ac0d6b926e741f328b23c8af0134312af7c032d9 (patch) | |
| tree | 86ed35737eabb038778c10c87714d0ac1041fc7e /block/blk-stat.h | |
| parent | block: Remove the synchronize_rcu() call from __blk_mq_update_nr_hw_queues() (diff) | |
| download | linux-ac0d6b926e741f328b23c8af0134312af7c032d9.tar.xz linux-ac0d6b926e741f328b23c8af0134312af7c032d9.zip | |
block: Reduce the amount of memory required per request queue
Instead of always allocating at least nr_cpu_ids hardware queues per request
queue, reallocate q->queue_hw_ctx if it has to grow. This patch improves
behavior that was introduced by commit 868f2f0b7206 ("blk-mq: dynamic h/w
context count").
Cc: Keith Busch <keith.busch@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-stat.h')
0 files changed, 0 insertions, 0 deletions